Electroanalytical Behavior of Gallic and Ellagic Acid Using Graphene Modified Screen-Printed Electrodes. Method for the Determination of Total Low Oxidation Potential Phenolic Compounds Content in Cork Boiling Waters

New electroanalytical methods have been proposed for the estimation of the total content of phenolic compounds of low oxidation potential in cork boiling water, expressed as gallic acid equivalent/g dry cork, by using screen‐printed electrode modified with graphene. The results obtained have been co...

Full description

Saved in:
Bibliographic Details
Published in:Electroanalysis (New York, N.Y.) N.Y.), 2015-01, Vol.27 (1), p.177-184
Main Authors: Guiberteau-Cabanillas, Agustina, Godoy-Cancho, Belén, Bernalte, Elena, Tena-Villares, Miriam, Guiberteau Cabanillas, Carmen, Martínez-Cañas, Manuel A.
Format: Article
Language:English
Subjects:
Boiling
Cork
Cork boiling water
Correlation
Drying
Electrode potentials
Electrodes
Ellagic acid
Equivalence
Gallic acid
Graphene
Phenolic compounds
Screen-printed electrodes
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:New electroanalytical methods have been proposed for the estimation of the total content of phenolic compounds of low oxidation potential in cork boiling water, expressed as gallic acid equivalent/g dry cork, by using screen‐printed electrode modified with graphene. The results obtained have been compared with spectrophotometric method (Folin‐Ciocalteau) and a good correlation has been found between them. The detection limits obtained by Winefordner‐Long and Clayton methods were 0.04 and 0.06 ppm for ellagic acid (EA), and 0.05 and 0.09 ppm for gallic acid (GA), respectively. The sensitivity, simplicity, selectivity, fast and low cost of the developed methodologies is also demonstrated.
ISSN:1040-0397
1521-4109
DOI:10.1002/elan.201400418